Well first off, you have the right board but the wrong chip. The Stealth III uses S3's Savage 4 not the Virge from 1997. As for getting Quake 3 to work with OpenGL... you can download the latest NT4 drivers and install those but keep the Windows 2000 drivers on. So when you restart, after you've installed the NT4 drivers, disable but do not uninstall the Windows 2000 drivers.
OpenGL should work...
Download em at S3 Planet @ http://www.s3planet.force9.co.uk/
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Windows 2000 - It's the future of "2D"
[This message has been edited by Keros (edited 08 February 2000).]